Quadrant of a sector. Quadrant. Attributed to John Elton. Expositions: Splendor of Spain 1598-1648: from Cervantes to Velazquez (Ministry of Education and Culture. Amsterdam 19-11-98 / 7-3-1999 / art and knowledge: culture in the time of Felipe III and Felipe IV (Valladolid 15-April / 27-Junio- 1999) / Rande 1702. Arde or Mar. Museum Do Mar. Vigo (24-07 / 11-11-2002) This is the first of the two models devised by the sailor English John is a combination of sector and ballastilla. The arch of the sector is graduated from 0 to 32º, with subdivisions determined by the Ballastilla scale.
Quadrant of a sector. Quadrant. Attributed to John Elton. Expositions: Splendor of Spain 1598-1648: from Cervantes to Velazquez (Ministry of Education and Culture. Amsterdam 19-11-98 / 7-3-1999 / art and knowledge: culture in the time of Felipe III and Felipe IV (Valladolid 15-April / 27-Junio- 1999) / Rande 1702. Arde or Mar. Museum Do Mar. Vigo (24-07 / 11-11-2002) This is the first of the two models devised by the sailor English John is a combination of sector and ballastilla. The arch of the sector is graduated from 0 to 32º, with subdivisions determined by the Ballastilla scale. For heights below 32º the sector or the sector or the ballastilla could be used indistinctly, and for higher heights There was a part of the sector and the rest on the virot of the Ballastilla. In this second case the height was obtained by the sum of the two portions, as, the "English quadrant" was used that, later to this first model, invented instrument is missing two pineses. Serie: astronomical instruments/Latit You
Size: 1411px × 1771px
Photo credit: © EU/BT / Alamy / Afripics
License: Licensed
Model Released: No
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